Usually a large male will lead a gorilla family. This can be a silverback, and males of 11 or 12 years of age are the ones that go grey in this manner. 5 people found this useful.
Fetal movement will usually be felt regularly after the 20th week of pregnancy. Any change in fetal movement (other than a 1-2 hour sleep cycle that some fetuses have) should be discussed with your physician. Decreased or absent fetal movement may be a sign of fetal distress. Kick tests (fetal movement counts) are used to monitor fetal wellbeing. You should monitor fetal movements (not just kicks) over a period of time (30-60 minutes). There is no right or wrong number of movements. You are trying to establish a baseline of fetal movements for your baby.
People who rescue and foster pregnant cats and/or the fostering of kittens are especially qualified to spot the symptoms, as the offspring of stray and feral cats are particularly prone to this condition. In fact many people involved in rescue believe in the spaying of rescued pregnant cats for exactly this reason.